Abstract: A tank assembly and a closure device for a tank assembly. The tank assembly may comprise a tank housing defining an interior and an exterior and an opening between the interior and the exterior, a liquid being containable in the interior, vapor being produceable from the liquid, a flow path being defined between the interior and the exterior, a closure housing connectable to the tank housing to selectively close the opening, and adsorption media supported by at least one of the tank housing and the closure housing, vapor being routed along the flow path from the interior of the tank assembly, through the adsorption media and to the exterior of the tank assembly. In some aspects, the adsorption media is supported by the closure housing. In some other aspects, the tank housing includes a receptacle portion having a receptacle interior, the receptacle portion defining the flow path, and the adsorption media is supportable in the receptacle interior.

Abstract: A mold is disclosed for producing two unjoined molded items in a single void during a single molding process. A divider ring is provided along the joining seam between mold halves. The ring has a central aperture and is formed of a stick resistant material.

Abstract: Disclosed herein is an electronic float gauge for indicating the level of liquid in a tank. A float follows the liquid level and causes a rotor that has magnets on it to rotate. Surrounding the magnets, in a concentric array, are a series of reed switches. The rotation of the magnets feeds information to the reed switches about the level of fluid in the tank. The reed switches are connected to a fluid level indicator.

Abstract: There is disclosed a spring-loaded shock absorbing system for use with molding devices to minimize wear due to repeated closing of mold portions. A helical spring which separates the mold portions must be overcome to join the mold portions. The spring is compressed between a platform's shoulder surface of adjustable height and a ledge flaring outward from a spring retainer. The shock absorber is used in conjunction with a clamping system.

Abstract: A cap for a fill pipe of a fluid container, such as a gas tank, is provided. It has a vent hole which is normally held unsealed by the weight of a ball which impinges against and thereby tilts a spring loaded pin carrying an O-ring. When the cap tips away from the vertical by more than a pre-selected angle, the ball rolls away from the pin and the spring urges the pin to an orientation where the O-ring seals the hole. When the container is tipped beyond the pre-selected angle, should the internal tank pressure exceed a pre-determined level, the pressure overcomes the force of the spring allowing relief venting.

Abstract: A gauge for indicating whether the level of a liquid, such as fuel or oil, in a tank has reached one or more preselected levels. A magnet is mounted in a stem attached atop a float which moves up and down with the rising and falling of the liquid level. When the magnet is adjacent an electrical switch housed in a sealed cover, the switch closes and connects an external power supply to a warning light. The float moves within a cylinder which has a small drain hole at the bottom and a vent near the top. Liquid moves into and out of the guide through the drain hole at a relatively slow rate and thereby eliminates intermittent closing and opening of the switch which would otherwise occur due to the sloshing of the liquid when the tank is in motion, such as when mounted in a vehicle.

Abstract: A tool for holding threaded inserts in a rotational mold includes a stud which projects within the mold cavity and which has a diameter substantially equal to the minor diameter of the threads of the insert. A spring loaded detent on the stud is received by the internal threads of the insert for holding the insert firmly against the inner wall of the mold yet permitting simple removal of the molded part. A retractor mechanism for using the tool with threaded inserts placed across the axis of removal of the molded part, is also taught.

Abstract: A fuel tank having a venting system is disclosed. It uses a vent pipe extending upwardly above the maximum quiescent fuel level. An open end of the vent pipe is surrounded by a baffle wall that is closed the top and open at the bottom. The other end of the vent pipe passes through a lower wall of the tank and is attached to a drain hose. A further partition wall may also be used on the tank.

Abstract: A float activated gauge includes a float, a frame for guiding the vertical movement of the float, and a twisted metal strip coacting with the float to provide a visual indication of the vertical position of the float. The frame is held in position by an easily assembled head comprising a ring body and a cap. The frame comprises two vertical rods, each of which terminates on its upper end in an outwardly extending stub. When assembled, the rods and stubs of the frame are sandwiched between the cap and the ring body, so that assembly of the gauge does not require bending or deforming of the frame.